EP 2517536 A1 20121031 - HIGH CRI ADJUSTABLE COLOR TEMPERATURE LIGHTING DEVICES
Title (en)
HIGH CRI ADJUSTABLE COLOR TEMPERATURE LIGHTING DEVICES
Title (de)
BELEUCHTUNGSVORRICHTUNGEN MIT HOHEM FARBWIEDERGABEINDEX UND ANPASSBARER FARBTEMPERATUR
Title (fr)
DISPOSITIFS D'ÉCLAIRAGE À TEMPÉRATURE DE COULEUR AJUSTABLE À CRI ÉLEVÉ
Publication
Application
Priority
- US 64370509 A 20091221
- US 2010003190 W 20101215
Abstract (en)
[origin: US2011148327A1] Solid state luminaires and light engines comprising a first group of solid state emitters comprising a first emitter emitting above the black body locus (BBL) in a CIE diagram, and a second emitter emitting below the BBL. The combination of light from the first and second emitters generates an emission color point within a standard deviation of the BBL. A second group of solid state emitters is included, the combination of light from the first and second groups of emitters causes emission within a standard deviation of the black body locus (BBL), wherein varying the intensity of the second group of emitters causes emission from the first and second groups of emitters to vary within a range of color temperatures while still emitting within the standard deviation of the BBL.
IPC 8 full level
H05B 33/08 (2006.01); H05B 44/00 (2022.01)
CPC (source: EP KR US)
H05B 45/20 (2020.01 - EP KR US); H01L 2224/48091 (2013.01 - EP KR US); H01L 2224/73265 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2011084135A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2011148327 A1 20110623; US 8511851 B2 20130820; CN 102714897 A 20121003; CN 102714897 B 20150812; EP 2517536 A1 20121031; JP 2013515354 A 20130502; JP 5964238 B2 20160803; KR 20120109567 A 20121008; TW 201146075 A 20111216; WO 2011084135 A1 20110714
DOCDB simple family (application)
US 64370509 A 20091221; CN 201080062058 A 20101215; EP 10799144 A 20101215; JP 2012544480 A 20101215; KR 20127019370 A 20101215; TW 99145087 A 20101221; US 2010003190 W 20101215